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FC0-U61 · Question #313

Which of the following cryptographic algorithm uses public key and private key to encrypt or decrypt data ?

The correct answer is C. Asymmetric. Asymmetric cryptography utilizes a pair of mathematically linked keys, a public key and a private key, for encryption and decryption operations.

Security

Question

Which of the following cryptographic algorithm uses public key and private key to encrypt or decrypt data ?

Options

  • AHashing
  • BSymmetric
  • CAsymmetric
  • DNumeric

How the community answered

(27 responses)
  • B
    7% (2)
  • C
    89% (24)
  • D
    4% (1)

Why each option

Asymmetric cryptography utilizes a pair of mathematically linked keys, a public key and a private key, for encryption and decryption operations.

AHashing

Hashing algorithms generate a fixed-size output (hash value) from input data to ensure data integrity, but they are not used for encrypting or decrypting data with keys.

BSymmetric

Symmetric cryptography uses a single, shared secret key for both encryption and decryption, requiring both parties to have prior knowledge of this key.

CAsymmetricCorrect

Asymmetric cryptography, also known as public-key cryptography, employs two distinct but mathematically related keys: a public key used for encryption (or verifying digital signatures) and a private key used for decryption (or creating digital signatures). This allows for secure communication without sharing a secret key beforehand.

DNumeric

Numeric is not a type of cryptographic algorithm; it is a category of data type.

Concept tested: Cryptographic algorithm types

Source: https://learn.microsoft.com/en-us/windows/win32/seccrypto/symmetric-and-asymmetric-encryption

Topics

#asymmetric encryption#public key cryptography#private key

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